Auxiliary device for disassembling and assembling air cylinder piston

Abstract

The embodiment of the utility model discloses an air cylinder piston disassembly and assembly auxiliary device which can be matched with an air cylinder piston, the piston is provided with a plurality of gaps separated by reinforcing ribs, and the auxiliary device comprises a main body part, a limiting part and a handle part. The first surface and the second surface are oppositely arranged, and the peripheral surface is connected with the first surface and the second surface; the limiting part is fixedly arranged on the first surface; the handle part is fixedly arranged on the main body part; the limiting parts can be embedded into the gaps corresponding to the limiting parts, and the limiting parts can abut against the reinforcing ribs. By arranging the auxiliary device with the limiting part, the piston and the auxiliary device are fixed, and the piston can be prevented from rotating along with the fixing bolt when the fixing bolt is disassembled and assembled, so that the fixing bolt is convenient to disassemble and assemble, and the working efficiency of disassembling and assembling the piston is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder tooling, and particularly relates to an auxiliary device for disassembling and assembling a cylinder piston. Background Art

[0002] When replacing the sealing ring of the cylinder end cover of the blanking cylinder, the cylinder piston needs to be disassembled before the sealing ring can be repaired or replaced. Operators usually use a wrench to disassemble the piston fixing bolts. However, during the disassembly process, the piston rod and the piston will rotate together with the fixing bolts, so the fixing bolts cannot be disassembled smoothly. Summary of the Utility Model

[0003] An embodiment of the present application provides an auxiliary device for disassembling and assembling a cylinder piston that facilitates the disassembly and assembly of piston fixing bolts.

[0004] An embodiment of the present application provides an auxiliary device for disassembling and assembling a cylinder piston, which can cooperate with the cylinder piston. The piston has a plurality of gaps separated by reinforcing ribs. The auxiliary device includes:

[0005] A main body portion having a first surface, a second surface and an outer peripheral surface. The first surface and the second surface are arranged opposite to each other, and the outer peripheral surface connects the first surface and the second surface;

[0006] A limiting portion fixedly arranged on the first surface;

[0007] A handle portion fixedly arranged on the main body portion; and,

[0008] The limiting portion can be embedded in the corresponding gap, and the limiting portion can abut against the reinforcing rib.

[0009] In some embodiments, the limiting portion includes a plurality of limiting rods distributed at intervals around the axis of the main body portion, and each limiting rod is arranged at an angle with the first surface.

[0010] In some embodiments, the number of the limiting rods is 2 to 4.

[0011] In some embodiments, the bottom of the limiting rod is fixedly welded to the main body portion.

[0012] In some embodiments, the limiting rod is perpendicular to the first surface.

[0013] In some embodiments, the main body portion is annular, the main body portion has a disassembly hole penetrating through the first surface and the second surface, and the limiting rods surround the disassembly hole.

[0014] In some embodiments, the outer diameter of the main body portion is 58 mm to 68 mm, the diameter of the disassembly hole is 20 mm to 30 mm, the diameter of the limiting rod is 6 mm to 10 mm, and the length of the handle portion is 15 cm to 25 cm.

[0015] In some embodiments, the handle portion is rod-shaped, and the handle portion is fixedly welded to the main body portion.

[0016] In some embodiments, the handle portion is fixedly welded to the outer peripheral surface of the main body portion.

[0017] In some embodiments, the main body portion, the limiting portion, and the handle portion are all made of steel.

[0018] Beneficial effects: By providing an auxiliary device with a limiting portion to fix the piston and the auxiliary device, it is possible to prevent the piston from rotating together with the fixing bolt when disassembling and assembling the fixing bolt, thereby facilitating the disassembly and assembly of the fixing bolt and improving the work efficiency of disassembling and assembling the piston. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 It is a schematic structural diagram of the cylinder piston disassembly and assembly auxiliary device in the embodiment of the present application.

[0021] Description of the Reference Numerals:

[0022] 1. Main body portion; 10. Disassembly hole; 11. First surface; 12. Second surface; 13. Outer peripheral surface; 2. Limiting rod; 3. Handle portion. Detailed Embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will change accordingly.

[0025] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0026] In the present utility model, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0028] In the related art, when replacing the seal ring of the blanking cylinder end cover, the piston needs to be disassembled before the seal ring can be repaired and replaced. Generally, the piston has a plurality of reinforcing ribs for increasing strength. The reinforcing ribs are radially distributed, and gaps are formed between adjacent reinforcing ribs. A fixing bolt is provided at the end of the piston, and the piston is connected to the piston rod through this fixing bolt. When using a wrench to disassemble the fixing bolt, the piston rod and the piston will rotate together with the fixing bolt, so there is no fixed point and it is impossible to smoothly disassemble the fixing bolt.

[0029] The embodiment of the present application provides an auxiliary device for disassembling and assembling a cylinder piston. By using this auxiliary device, the piston is fixed to prevent the piston from rotating together with the fixing bolt, improving the working efficiency of disassembling and assembling the piston.

[0030] As Figure 1As shown in the figure, an auxiliary device for disassembling and assembling a cylinder piston can cooperate with the cylinder piston. The piston includes a plurality of reinforcing ribs distributed radially. Each reinforcing rib encloses a circle and surrounds the central axis of the piston, and a gap is formed between two adjacent reinforcing ribs. The auxiliary device for disassembling and assembling the cylinder piston includes a main body portion 1, a limiting portion, and a handle portion 3. The main body portion 1 has a first surface 11 facing the gap and a second surface 12 disposed opposite to the first surface 11. The limiting portion is fixedly provided on the first surface 11 and is arranged corresponding to the gap and the reinforcing ribs of the piston. The handle portion 3 is fixedly provided on the main body portion 1.

[0031] During use, the operator holds the handle portion 3, inserts the limiting portion into the gap between the piston reinforcing ribs. The limiting portion abuts against the reinforcing ribs, preventing the piston from rotating relative to the auxiliary device, enabling the operator to fix the cylinder piston by using the lever principle, and then using a wrench to remove the fixing bolt at the end of the piston. By providing the limiting portion, the piston and the auxiliary device are fixed, which can prevent the piston from rotating together with the fixing bolt during the disassembly and assembly of the fixing bolt, thus facilitating the disassembly and assembly of the fixing bolt and improving the working efficiency of disassembling and assembling the piston.

[0032] The main body portion 1 may have a disassembly hole 10 penetrating the first surface 11 and the second surface 12 along the central axis direction of the piston, making the main body portion 1 as a whole annular. The limiting portion is fixedly provided on the annular main body portion 1. The limiting portion may include a plurality of limiting rods 2 separated from each other. Each limiting rod 2 is evenly distributed in the same circumference around the central axis of the piston. Each limiting rod 2 surrounds the disassembly hole 10 of the main body portion 1. Each limiting rod 2 extends in a direction parallel to the central axis of the piston, and each limiting rod 2 is parallel to each other. The limiting rod 2 is disposed at an angle with the first surface 11 of the main body portion 1. For example, the limiting rod 2 is perpendicular to the first surface 11. The limiting rod 2 and the main body portion 1 may be fixedly connected by means of integral processing, welding, screwing, bonding, or clamping. Generally, the limiting rod 2 and the main body portion 1 are fixedly connected by welding.

[0033] There are multiple gaps between the limiting rods 2 and the piston, and each limiting rod 2 is embedded in the corresponding gap. For each gap, it has a first stop surface and a second stop surface that are spaced apart in the circumferential direction around the central axis of the piston. So that in this circumferential direction, all the gaps form multiple first stop surfaces and multiple second stop surfaces, and the first stop surfaces and the second stop surfaces are alternately distributed. The first stop surface can prevent the piston from rotating clockwise relative to the auxiliary device, and the second stop surface can prevent the piston from rotating counterclockwise relative to the auxiliary device. For each gap, since it is located between two adjacent reinforcing ribs, the first stop surface is equivalent to the outer wall surface of one of the reinforcing ribs, and abutting against the first stop surface means abutting against this reinforcing rib; the second stop surface is equivalent to the outer wall surface of the other reinforcing rib, and abutting against the second stop surface means abutting against the other reinforcing rib. After each limiting rod 2 is embedded in the corresponding gap, at least one first stop surface abuts against the corresponding limiting rod 2, and at least one second stop surface abuts against the corresponding limiting rod 2, so as to prevent the piston from rotating clockwise and counterclockwise relative to the auxiliary device. The lengths of the limiting rods 2 can be the same, or all different, or the lengths of some of the limiting rods 2 are the same while the lengths of the remaining limiting rods 2 are different; the limiting rods 2 can be round rods, square rods or prismatic rods, etc.; the number of the limiting rods 2 can be 2 to 4 or other numbers, and the shape, size and number of the limiting rods 2 are not limited here.

[0034] The handle portion 3 is fixed on the outer peripheral surface 13 of the main body portion 1, and the outer peripheral surface 13 connects the first surface 11 and the second surface 12 of the main body portion 1. The handle portion 3 is arranged at an angle with the limiting rod 2. By way of example, the handle portion 3 is perpendicular to the limiting rod 2. The handle portion 3 can be fixedly connected to the main body portion 1 by means of integral processing, welding or bonding, etc. Generally, the handle portion 3 is fixedly connected to the main body portion 1 by welding.

[0035] In a specific structure, the auxiliary device for disassembling and assembling a cylinder piston includes a main body portion 1, a plurality of limiting rods 2 and a handle portion 3. The main body portion 1, the limiting rods 2 and the handle portion 3 can all be made of steel. The main body portion 1 is annular, and it has a first surface 11, a second surface 12 and an outer peripheral surface 13. The first surface 11 faces the gap of the cylinder piston, the second surface 12 is arranged opposite to the first surface 11, and the outer peripheral surface 13 is located between the first surface 11 and the second surface 12 and connects the first surface 11 and the second surface 12, and a disassembly hole 10 is formed through the first surface 11 and the second surface 12. There are four limiting rods 2, which are evenly distributed on the first surface 11 of the main body portion 1 in the same circumference. The bottom of each limiting rod 2 is fixedly connected to the first surface 11 by welding, and each limiting rod 2 is perpendicular to the first surface 11. The handle portion 3 is arranged on the outer peripheral surface 13 of the main body portion 1, the bottom of the handle portion 3 is fixedly connected to the outer peripheral surface 13 by welding, the handle portion 3 is a straight rod, and the central axis of the handle portion 3 is parallel to the first surface 11 and the second surface 12, that is, the handle portion 3 is perpendicular to each limiting rod 2.

[0036] During use, the four limiting rods 2 are respectively inserted into the gaps corresponding to the pistons of the cylinders. Some of the limiting rods 2 abut against the first stop surfaces of the corresponding gaps, and the remaining limiting rods 2 abut against the second stop surfaces of the corresponding gaps, so as to prevent the pistons from rotating clockwise and counterclockwise relative to the auxiliary device; the disassembly hole 10 of the main body portion 1 can expose the fixing bolts at the ends of the pistons, facilitating the disassembly and assembly of the fixing bolts with a wrench.

[0037] For this cylinder piston auxiliary disassembly and assembly device, the outer diameter of the annular main body portion 1 can be 58 mm to 68 mm. For example, the outer diameter of the main body 1 can be 58 mm, 60 mm, 63 mm, 65 mm or 68 mm. The diameter of the disassembly hole 10 of the main body portion 1 can be 20 mm to 30 mm. For example, the diameter of the disassembly hole 10 can be 20 mm, 22 mm, 24 mm, 27 mm or 30 mm. The diameter of the limiting rod 2 can be 6 mm to 10 mm. For example, the diameter of the limiting rod 2 can be 6 mm, 7 mm, 8 mm, 9 mm or 10 mm. The length of the handle portion 3 can be 15 cm to 25 cm. For example, the length of the handle portion 3 is 15 cm, 17.5 cm, 19 cm, 22.5 cm or 25 cm. Within each numerical range, the auxiliary device has sufficient strength and can ensure cooperation with the gaps of the pistons. In a specific structure, the main body portion 1 is circular, its outer diameter is 63 mm, and the diameter of its disassembly hole is 25 mm; the limiting rod 2 is a round rod, its diameter is 8 mm; the handle portion 3 is a straight rod, and its length is 20 cm.

[0038] In an alternative structure, the limiting portion includes at least one limiting rod 2. The shape and size of the limiting rod 2 match the shape and size of the piston gap. After the limiting rod 2 is inserted into the corresponding gap, the limiting rod 2 fills the entire gap, and the limiting rod 2 abuts against both the first stop surface and the second stop surface of the piston, so as to realize the restraint and limitation of the clockwise and counterclockwise rotation of the piston relative to the auxiliary device through the cooperation of one limiting rod and the gap.

[0039] In an alternative structure, the handle portion 3 can be a bent body, which can include a first handle and a second handle perpendicular to each other. The first handle can be parallel to the limiting rod 2, and the second handle can be perpendicular to the limiting rod 2. One end of the first handle is fixedly welded to the first surface 11 of the main body portion 1, and the other end of the first handle is fixed to the second handle, and the second handle can be held by an operator.

[0040] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A cylinder piston disassembly and assembly auxiliary device, capable of cooperating with a cylinder piston, wherein the piston has a plurality of gaps separated by reinforcing ribs, characterized in that: The auxiliary device comprises: A main body, the main body having a first surface, a second surface and an outer peripheral surface, the first surface and the second surface are arranged opposite to each other, and the outer peripheral surface connects the first surface and the second surface; A limiting portion, the limiting portion is fixedly disposed on the first surface; a handle portion, the handle portion being fixedly disposed on the main body portion; and The limiting portion can be embedded in the corresponding gap, and the limiting portion can abut against the reinforcing rib.

2. The cylinder piston disassembly and assembly auxiliary device according to claim 1, characterized in that: The limiting portion includes a plurality of limiting rods spaced apart and distributed around the axis of the main body, and each of the limiting rods is arranged at an angle to the first surface.

3. The cylinder piston disassembly and assembly auxiliary device according to claim 2, characterized in that: The number of the limiting rods is 2 to 4.

4. The cylinder piston disassembly and assembly auxiliary device according to claim 2, characterized in that: The bottom of the limiting rod is welded and fixed to the main body.

5. The cylinder piston disassembly and assembly auxiliary device according to claim 4, characterized in that: The limiting rod is perpendicular to the first surface.

6. The cylinder piston disassembly and assembly auxiliary device according to claim 2, characterized in that: The main body is annular and has a disassembly hole penetrating the first surface and the second surface, and the limiting rod surrounds the disassembly hole.

7. The cylinder piston disassembly and assembly auxiliary device according to claim 6, characterized in that: The outer diameter of the main body is 58 mm to 68 mm, the diameter of the disassembly hole is 20 mm to 30 mm, the diameter of the limit rod is 6 mm to 10 mm, and the length of the handle is 15 cm to 25 cm.

8. The cylinder piston disassembly and assembly auxiliary device according to claim 1, characterized in that: The handle part is rod-shaped and is fixed to the main body part by welding.

9. The cylinder piston disassembly and assembly auxiliary device according to claim 8, characterized in that: The handle portion is fixed to the outer peripheral surface of the main body portion by welding.

10. The cylinder piston disassembly and assembly auxiliary device according to claim 1, characterized in that: The main body, the limiting part and the handle are all made of steel.

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